diff --git a/build.xml b/build.xml
index 0883b24..b2fada2 100644
--- a/build.xml
+++ b/build.xml
@@ -15,7 +15,7 @@
 
 	<path id="classpath">
 		<pathelement location="${ctp}/libraries/jdbm.jar"/>
-		<pathelement location="${ctp}/libraries/log4j/log4j-1.2-api-2.17.2.jar"/>
+		<pathelement location="${ctp}/libraries/log4j/log4j-1.2-api-2.26.0.jar"/>
 	</path>
 
 	<target name="clean">
@@ -56,7 +56,7 @@
 			<manifest>
 	            <attribute name="Date" value="${today} at ${now}"/>
 	            <attribute name="Java-Version" value="${ant.java.version}"/>
-				<attribute name="Class-Path" value=""/>
+				<attribute name="Class-Path" value="log4j/log4j-api-2.26.0.jar log4j/log4j-core-2.26.0.jar log4j/log4j-1.2-api-2.26.0.jar"/>
 			</manifest>
 			<fileset dir="${build}" />
 		</jar>